Multipoint Bluetooth transmitters, Can anyone find anything that works?

[Arachia]

I have ALOT of Bluetooth speakers in my families homes, but each one can only link one speaker to one device.   I thought it would be great to link several speakers together to single audio source.  So I got my best audio system out set it up even wired in a set of wired speakers to make sure it works fine.  then went to the store for a multi-tap Bluetooth transmitter.   And bam, nobody had a clue what I  was talking about.   Most store didn't even have a Bluetooth transmitter let alone one with either RCA or aux input.  So I go online and get slapped again.  Everything seems to come from Asian sellers that are less then reputable.   Why is it so hard just to find decent tech.  I just want to connect 4 large Bluetooth speakers to a decent audio system that has wired, RCA, and AUX connection points.   I would prefer to get the stuff I need from a decent site and not have to ship from china and end up with questionable products with no support.   What I am looking for needs to be able to connect to at least two to four Bluetooth speakers and stay connect if the system is turned off and back on a week later.   so far I looked on google, best buy, wallyworld(i refuse to say that store's proper name), newegg, and tigerdirect.

 

1. RCA or AUX input

2. 2-4 Bluetooth connection

3. Bluetooth transmitter not reciever

4. automatically connect to previously link speaker once turned on even when left off for a week or more.

5. looking at  $25-50 per device

6. Nothing from weird Asian sellers